Hello guys, I’m pretty new to KTOR and Kotlin in general… I’ve created a simple multiplatform project, and I’m calling the following endpoint from the iOS side:

<https://api.github.com/projects/columns/42>

in order to receive 401, which is intended. Unfortunately, the program crashes with the following explanation:

Exception doesn't match @Throws-specified class list and thus isn't propagated from Kotlin to Objective-C/Swift as NSError.
It is considered unexpected and unhandled instead. Program will be terminated.
Uncaught Kotlin exception: io.ktor.client.features.ClientRequestException: Client request(<https://api.github.com/projects/columns/42>) invalid: 401 Unauthorized. Text: "{"message":"Requires authentication","documentation_url":"<https://docs.github.com/rest/reference/projects#get-a-project-column>"}"

I get back the response and everything gets logged properly. Any idea on how to fix this? Thanks!

It seems the new Ktor plugin (1.5.3) is only available for IntelliJ IDEA Ultimate. Do you think they plan on releasing it to the Community Edition ?

Hello guys is there any way to add headers to all request in Ktor? I've tried to add them via

buildHeaders { append("foo","bar" }

but looks like is not working if I add them in the

request

it works... it's weird.

httpClient.get<FooResponse>("<https://foo.bar>"){header("foo","bar")} <-- it works

Any idea why?

Is there any way to do a

get

inside a

return HttpClient(OkHttp) {
  //For instance if I want to update a refreshToken
}

can someone explain why this test fails:

val context = describe("ktor") {
        it("routing works") {
            val server = TestApplicationEngine(environment = createTestEnvironment {
                module {
                    routing {
                        route("/x") {
                            route("/y") {
                                get {}
                            }

                        }
                    }

                }
            }) {}.apply { start() }

            expectThat(server.handleRequest(HttpMethod.Get, "/x/y").response.status()).isNotNull().get { isSuccess() }.isTrue()
        }
    }

hi, we have a ktor http client trying to post to a ktor server with cookies. the server isn’t seeing any

request.cookies[]

, anyone have any idea why? setup in thread

Does Ktor support reloading of existing routes? I.e. adding or removing them. If not, I can post a design ticket on YouTrack and try to implement that. Thank you.

Hey folks 👋 I’m upgrading a project to ktor 1.5.3 and it breaks some tests when run on JVM (iOS tests are fine). In these tests, a class is tested that provides a reactive interface to its underlying

HttpClient

instance, by using Reaktive helpers to “convert” coroutines into

Observable

(or other Reaktive types). To do actual asserts, Reaktive helpers like

TestObserver

are used:

fun `it does whatever a spider cat does`() {
    // ktorMockServerManager is just a way to configure mock engine handlers      
    ktorMockServerManager.enqueueRequest(
        ...
    )

    sut.doApiStuff(...)
        .test()
        .assertComplete()
}

The tests are completely synchronous, but as soon as I update ktor to 1.5.1 (1.5.0 is fine, though), they start failing because by the time

assertComplete

is called, the underlying coroutine hasn’t yet finished, so the tests fail. If I add a

sleep

call like this:

fun `it does whatever a spider cat does`() {

    ktorMockServerManager.enqueueRequest(
        ...
    )

    val observer = sut.doApiStuff(...)
        .test()

    sleep(1000)

    observer.assertComplete()
}

I wonder what change between 1.4.3 and 1.5.1 could lead to this and what’s the way around it?

Is there some trick to getting logging working with multiplatform? I've followed the Ktor docs (https://ktor.io/docs/features-logging.html#configure_feature) but am getting nothing. My ktor client code is in commonMain, but I've tried delegating logging to an (Android) expected function, which is just a copy of the long logging experimental code, but still get nothing. I'm somewhat (ie very) stuck :(

Hi! Where can I find an exhaustive explanation about choosing between HOCON and Code configuration? I don't quite understand which way is more preferred.

Hi guys, I’m creating my first server that latter will be used in a KMP project. Question: how can I read values from, let’s say, a

local.properties

? This was my idea:

private fun getSecret(envKey: String, localKey: String): String = System.getenv(envKey) ?: ...(localKey,"")

Thanks!

how can I do a network call inside a

HttpClientConfig<OkHttpConfig>

? I need to refresh my credentials on my server if I get a 401

Has anyone ever faced a websocket extension not being installed? I can see that

install { }

DSL is called, but the lambda passed to it is not. So that

WebSocketExtensionFactory.install()

is never called, and even the outer

WebSocketExtensionsConfig.build()

is never called.

never mind I think I figured it out

Hi all. Trying out

ktor-client

in Android, and running into this error whenever i’m trying to make any request

kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for AwaitContinuation(DispatchedContinuation[Dispatchers.Main.immediate, Continuation at kotlinx.coroutines.DeferredCoroutine.await$suspendImpl(Builders.common.kt:101)@fcc4908]){Cancelled}@c6bb8a1. 
...
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:465)
...
Caused by: java.lang.ClassCastException: kotlin.coroutines.jvm.internal.CompletedContinuation cannot be cast to kotlinx.coroutines.internal.DispatchedContinuation
...
at io.ktor.util.pipeline.SuspendFunctionGun.access$resumeRootWith(SuspendFunctionGun.kt:15)

Anyone got any clue as to what i’m doing wrong? I’m using Ktor

1.5.2

, with Android engine - along with kotlin

1.4.30

👋 Am I reading this right that I cannot pin to just root certificate, I have to pin to the whole chain in ktor? https://github.com/ktorio/ktor/blob/main/ktor-client/ktor-client-ios/darwin/src/io/ktor/client/engine/ios/certificates/CertificatePinner.kt

Hi! Is this the way to set content type in tests (I thought there would be a better way?):

private fun ContentType.full() = "$contentType/$contentSubtype"

handleRequest(
        <http://HttpMethod.Post|HttpMethod.Post>, "/some-url") {
            addHeader(HttpHeaders.Accept, ContentType.Text.Plain.full())
        }

in case it matters I am using kodein for dependency injection but I am not using within the test(in case that is part of the problem)

Hello all! I have a question about multiple modules and Kodein: How can I import a Kodein.Module into every ktor module? 🙂 As I can only install a feature once, I would like to know how to add a Kodein modules per ktor module that I launch

How can I generate a Java Keystore from an already made LetsEncrypt certificate that wasn't provided an alias on creation?

Is there any reason not to make IosHttpRequestException an IOException ? It would be nice to make it so and also document (make the api contract) that

HttpClient.request

will throw

IOException

for IO errors… ?

Hello, This is my configuration:

//client
HttpClient(Apache) {
    install(JsonFeature) { serializer = KotlinxSerializer(Json { ignoreUnknownKeys = true }) }
}

//server
install(ContentNegotiation) {
        kotlinx.serialization.json.Json { ignoreUnknownKeys = true }
//        gson { setPrettyPrinting() }
    }

and this is a sample request:

val response = client.get<List<Event>>("<http://localhost:8080>${application.locationToUrl(EventsApi())}") {
    body = ...
    contentType(ContentType.Application.Json)
}

and this is the output:

invalid: 415 Unsupported Media Type. Text: ""

But if I uncomment

gson { setPrettyPrinting() }

it works… Shouldn’t

kotlinx.serialization.json.Json

be enough? 🤔

How can I make it so I host the website & the backend in the ktor app. I was thinking of static content and then XMLHTTPRequest to access the backend api: ktor app +----------- / -> public/index.html (has assets that also need to be accessible from the /public folder) /security -> public/security.html (has assets that also need to be accessible from the /public folder) /api -> handled by the api using GET, POST, etc. functions How should my routes look? EDIT: I tried this but it didn't really work. /api returned correctly but / and /index.html or any other asset in /public did not show up.

get("/api") {
            call.respondText("works")
        }

        static {
            resource("/", "public/index.html")
            resource("*", "public/index.html")
            resources("public")
        }

Does the KTor client support windows with K/N ?

The ktor http client doesn't seem to allow to bind the http request to a different ip on the network interface, apache http client allows it by specifying a different local address from the request builder, is there a way to do it in ktor http client? Even using the Apache http client there seems to be no control over this.

I just found out that Ktor is leaking memory like a sieve in my Kotlin/Native Application. Is there anything I can do about this? My App makes HTTP request every 5 seconds on average; it's necessarily chatty, so the leaks add up very quickly and cause the App to be force quit by iOS within an hour. Seeing this: https://youtrack.jetbrains.com/issue/KTOR-1238 ...I have ensured that HttpClient is not being recreated, a couple of instances are being reused. But HttpResponse is probably the one being leaked and I see no solution.

Hi, any ideas how to import Ktor plugin to intelliJ IDEA? in the plugins market there's a Ktor (Obsolete) which looks like not the supported version. and on the website I downloaded the Ktor lib which contains ktor-plugin.jar, resources_en.jar, but can't find a way to import both

Hi all, I'm looking to run my Ktor development environment inside a Docker container. Ideally, I wouldn't necessarily be packaging the app for deployment whenever I make a code change. Instead, I imagine the source code existing on the host machine, and then the classes/files required to run the development environment will be volume mounted into the Docker container. The trouble I have is I don't actually understand what the IDE does when you 'run' a Ktor project in the IDE. What commands are invoked? Is it possible to replicate this process manually, within the Docker container? This is less a question about Docker and more about compiling/running a Ktor application from a shell.

I am trying to mock a database within my unit test. This doesn't work currently because in my test I am using the

withTestApplication({ module() })

inside the module it setup database with url does doesn't point anywhere.. I wanted to know if anyone had experience with this. I am hoping to keep this a mock and not an in memory database..